Re: New Programs for Hardy?

On 11/28/07, Colin Watson <cjwatsonubuntu.com> wrote:
> On Thu, Nov 15, 2007 at 01:15:28AM -0600, Conrad Knauer
wrote:
> > On Nov 14, 2007 2:55 PM, Bryan Haskins
<kingofallhearts999gmail.com> wrote:
> > > because of this I can almost guarantee it
will not see the
> > > Install Disc for some time to come, even
though Iced Tea is sure a movement,
> > > we're working with 700mb here, compression
only does so much.
> >
> > I'm not too familiar with the details of the
squashfs compression
> > used; how close would it be?  Is there a way to
increase compression
> > at the expense of processing time?  Could some of
the Windows FOSS be
> > pared down to make room for it?
>
> We are always looking for more ways to reduce CD size
so that we can fit
> more things on the CD, although squashfs-lzma is not on
the table at the
> moment since, while squashfs is likely to be merged
upstream soon,
> squashfs-lzma apparently isn't. That said, I believe
the next version of
> squashfs uses larger block sizes to achieve better
compression.
>
> The Windows FOSS has already been pared down many
times, and I think is
> probably now near its minimum.
>
> There are various other targets of opportunity, such as
duplicate files
> and unnecessary content in the English language packs,
that we'll be
> looking into as well.
>
> Cheers,
>
> --
> Colin Watson                                      
[cjwatsonubuntu.com]
>

Hi

Here are my personal suggestions on how to, on many ways,
reduce CD sizes.

1. Perforation changing 0 bits to lseek(2). (so they don't
have a real
and definite file size. ~2MB)
2. Kernel Modules Stripping. (not possible to remove every
symbols,
but it's possible to remove useless ones. ~30MB)
3. On-demand Language download. (remove all languages except
EN & GB,
but autodownload language on demand. ~160MB)
4. On-demand Fonts download. (remove all fonts associated
with
non-existing languages. ~90MB)
5. Remove DiveIntoPython on default installation (~80MB)

Some suggestions.

1. Change Rhythmbox to Banshee. (remove Sound Juicer and
Serpentine,
since all of those features are available in Banshee.
~30MB)
2. OpenCD (~80MB)

Reducing LiveCD size is good, because lesser files means
less overhead
and drive seek.

Joel

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Hi,

Joel Bryan Juliano [2007-12-08 13:42 +0800]:
> 1. Perforation changing 0 bits to lseek(2). (so they
don't have a real
> and definite file size. ~2MB)

I'm afraid I don't understand that. Do you have a pointer to
some
details?

> 2. Kernel Modules Stripping. (not possible to remove
every symbols,
> but it's possible to remove useless ones. ~30MB)

Hm, wow! (IANAKD, can't comment on this).

> 3. On-demand Language download. (remove all languages
except EN & GB,
> but autodownload language on demand. ~160MB)

We do want to ship with the world's most common languages,
and we
currently spend mabye 30 MB of CD size for that. It varies
between
releases, we just fill up CDs with however many langpacks
fit to fill
it up.

> 4. On-demand Fonts download. (remove all fonts
associated with
> non-existing languages. ~90MB)

Ideally a default Ubuntu installation has all fonts to
display
everything. We have to compromise a bit and move some out
to
language-support, but recently we already cleaned up fonts,
and I
don't think we ship 90 MB worth of (compressed) CD space.

> 5. Remove DiveIntoPython on default installation
(~80MB)

This package needs 1 MB on the CD, not 80.

> 1. Change Rhythmbox to Banshee. (remove Sound Juicer
and Serpentine,
> since all of those features are available in Banshee.
~30MB)

Hm, where do you take these numbers from? RB is 3.8 MB,
banshee is 2
(again, compressed).  Removing Sound juicer and Serpentine
would be
great, of course, RB now supports burning CDs; not sure
about reading
them.

Pitti

-- 
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Ubuntu Developer   http://www.ubuntu.com
Debian Developer   http://www.debian.org

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On Sat, Dec 08, 2007 at 01:42:02PM +0800, Joel Bryan Juliano
wrote:
> 2. Kernel Modules Stripping. (not possible to remove
every symbols,
> but it's possible to remove useless ones. ~30MB)

All the useless ones are removed. The ones that are left
there are the 
ones we think are useful 

-- 
Matthew Garrett | mjg59srcf.ucam.org

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On Dec 8, 2007 5:42 AM, Joel Bryan Juliano
<joelbryan.julianogmail.com> wrote:
>
> On 11/28/07, Colin Watson <cjwatsonubuntu.com> wrote:
> > On Thu, Nov 15, 2007 at 01:15:28AM -0600, Conrad
Knauer wrote:
> > > On Nov 14, 2007 2:55 PM, Bryan Haskins
<kingofallhearts999gmail.com> wrote:
> > > > because of this I can almost guarantee
it will not see the
> > > > Install Disc for some time to come, even
though Iced Tea is sure a movement,
> > > > we're working with 700mb here,
compression only does so much.
> > >
> > > I'm not too familiar with the details of the
squashfs compression
> > > used; how close would it be?  Is there a way
to increase compression
> > > at the expense of processing time?  Could
some of the Windows FOSS be
> > > pared down to make room for it?
> >
> > We are always looking for more ways to reduce CD
size so that we can fit
> > more things on the CD, although squashfs-lzma is
not on the table at the
> > moment since, while squashfs is likely to be
merged upstream soon,
> > squashfs-lzma apparently isn't. That said, I
believe the next version of
> > squashfs uses larger block sizes to achieve better
compression.
> >
> > The Windows FOSS has already been pared down many
times, and I think is
> > probably now near its minimum.
> >
> > There are various other targets of opportunity,
such as duplicate files
> > and unnecessary content in the English language
packs, that we'll be
> > looking into as well.
> >
> > Cheers,
> >
> > --
> > Colin Watson                                      
[cjwatsonubuntu.com]
> >
>

Other ways to save space is to compress png images using
png
optimizers like pngcrush.
Using python one-liners, there are 10255 totalling 80239148
bytes or
76M in gutsy livecd.

Also, finddup (in perforate package) found 2549 duplicate
files. and
binstats found 162 unused libraries in gutsy livecd.
Interesting is /usr/bin/perl5.8.8 and /usr/bin/perl are
duplicates
occupying 1M each, and if we look at /usr/bin/docs, bunch of
.tar.gz
files are duplicates.

Another way is (my shields are ready), XML/HTML
optimizations.

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